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1
18
19 package de.gulden.framework.amoda.generic.data;
20
21 import de.gulden.framework.amoda.model.metadata.NamedValue;
22 import java.awt.*;
23 import java.io.*;
24 import java.lang.*;
25 import java.util.*;
26
27
33 public class GenericValue implements NamedValue {
34
35
39 public static String  [][] BOOLEAN_LITERALS = {{"true","yes","on"},{"false","no","off"}};
40
41 protected Class type;
42
43 protected Object object;
44
45 protected String name;
46
47
48
52 public GenericValue() {
53 }
55
56 public GenericValue(Object value) {
57 this();
58 setType(value.getClass());
59 set(value);
60 }
61
62
63
67 public String getString() {
68 return toString(get());
69 }
70
71 public int getInt() {
72 if (object instanceof Number ) {
73 return ((Number )object).intValue();
74 } else if (object instanceof String ) {
75 try {
76 return Integer.valueOf((String )object).intValue();
77 } catch (NumberFormatException nfe) {
78 throw new de.gulden.framework.amoda.model.data.IllegalTypeError("cannot convert "+((String )object)+" to int");
79 }
80 } else if (object==null) {
81 return 0;
82 } else {
83 throw new de.gulden.framework.amoda.model.data.IllegalTypeError("cannot convert value of type "+object.getClass().getName()+" ["+object.toString()+"] to int");
84 }
85 }
86
87 public float getFloat() {
88 if (object instanceof Number ) {
89 return ((Number )object).floatValue();
90 } else if (object instanceof String ) {
91 try {
92 return Float.valueOf((String )object).floatValue();
93 } catch (NumberFormatException nfe) {
94 throw new de.gulden.framework.amoda.model.data.IllegalTypeError("cannot convert "+((String )object)+" to float");
95 }
96 } else if (object==null) {
97 return 0.0f;
98 } else {
99 throw new de.gulden.framework.amoda.model.data.IllegalTypeError("cannot convert value of type "+object.getClass().getName()+" ["+object.toString()+"] to float");
100 }
101 }
102
103 public double getDouble() {
104 if (object instanceof Number ) {
105 return ((Number )object).doubleValue();
106 } else if (object instanceof String ) {
107 try {
108 return Double.valueOf((String )object).doubleValue();
109 } catch (NumberFormatException nfe) {
110 throw new de.gulden.framework.amoda.model.data.IllegalTypeError("cannot convert "+((String )object)+" to double");
111 }
112 } else if (object==null) {
113 return 0.0;
114 } else {
115 throw new de.gulden.framework.amoda.model.data.IllegalTypeError("cannot convert value of type "+object.getClass().getName()+" ["+object.toString()+"] to double");
116 }
117 }
118
119 public boolean getBoolean() {
120 if (object instanceof Boolean ) {
121 return ((Boolean )object).booleanValue();
122 } else if (object instanceof String ) {
123 String boolString=(String )object;
124 return isBooleanLiteral(true,boolString);
125 } else if (object instanceof Number ) {
126 return (((Number )object).doubleValue()!=0.0);
127 } else if (object==null) {
128 return false;
129 } else {
130 throw new de.gulden.framework.amoda.model.data.IllegalTypeError("cannot convert value of type "+object.getClass().getName()+" ["+object.toString()+"] to boolean");
131 }
132 }
133
134 public boolean isTypeAvailable(Class type) {
135 if ((object!=null)&&(type.isAssignableFrom(object.getClass()))) {
137 return true;
138 } else if (type.isAssignableFrom(this.type)) {
139 return true;
140 } else if (String .class.isAssignableFrom(type)) {
141 return true; } else if (Integer .class.isAssignableFrom(type)||Double .class.isAssignableFrom(type)) {
143 return Number .class.isAssignableFrom(this.type);
144 } else if (Boolean .class.isAssignableFrom(type)) {
145 return Boolean .class.isAssignableFrom(this.type)
146 || Number .class.isAssignableFrom(this.type)
147 || String .class.isAssignableFrom(this.type);
148 } else {
149 return false;
150 }
151 }
152
153 public void parseString(String s) {
154 if (type!=null) { try {
156 if (String .class.isAssignableFrom(type)) {
157 object=s;
158 } else if (Boolean .class.isAssignableFrom(type)) {
159 object=isBooleanLiteral(true,s.trim()) ? Boolean.TRUE : Boolean.FALSE; } else if (Integer .class.isAssignableFrom(type)) {
161 object=Integer.valueOf(s.trim());
162 } else if (Float .class.isAssignableFrom(type)) {
163 object=Float.valueOf(s.trim());
164 } else if (Double .class.isAssignableFrom(type)) {
165 object=Double.valueOf(s.trim());
166 } else if (Class .class.isAssignableFrom(type)) {
167 try {
168 object=Class.forName(s.trim());
169 } catch (ClassNotFoundException cnfe) {
170 throw new de.gulden.framework.amoda.model.data.IllegalTypeError("string '"+s.trim()+"' is not a valid class name, class not found");
171 }
172 } else if (File.class.isAssignableFrom(type)) {
173 object=(new File(s.trim())); } else if (Color.class.isAssignableFrom(type)) {
175 object=de.gulden.util.Toolbox.parseColor(s.trim());
176 if (object==null) {
177 throw new de.gulden.framework.amoda.model.data.IllegalTypeError("string '"+s+"' is not a valid color");
178 }
179 } else {
180 throw new de.gulden.framework.amoda.model.data.IllegalTypeError("cannot handle type '"+type.getName()+"' for parsing '"+s+"'");
181 }
182 } catch (NumberFormatException nfe) {
183 throw new de.gulden.framework.amoda.model.data.IllegalTypeError("cannot parse string '"+s+"' as value for type "+type.getName());
184 }
185 } else { if (s.equalsIgnoreCase("yes")||s.equalsIgnoreCase("true")||s.equalsIgnoreCase("on")) {
188 set(Boolean.TRUE);
189 return;
190 } else if (s.equalsIgnoreCase("no")||s.equalsIgnoreCase("false")||s.equalsIgnoreCase("off")) {
191 set(Boolean.FALSE);
192 return;
193 }
194 try {
196 double d=Double.parseDouble(s);
197 double dRound=Math.round(d);
198 if (d==dRound) { set(new Integer ((int)dRound));
200 } else { set(new Double (d));
202 }
203 return;
204 } catch (NumberFormatException nfe) {
205
213 set(s); }
215 }
216 }
217
218 public String toString(Object o) {
219 if (object instanceof Color) {
220 return de.gulden.util.Toolbox.toString((Color)object);
221 } else if (object instanceof File) {
222 return ((File)object).getAbsolutePath();
223 } else if (o!=null) {
224 return o.toString();
225 } else {
226 return null;
227 }
228 }
229
230 public File getFile() {
231 if (object instanceof File) {
232 return ((File)object);
233 } else if (object instanceof String ) {
234 File f=new File((String )object);
235 try {
236 f=f.getCanonicalFile();
237 return f;
238 } catch (java.io.IOException ioe) {
239 throw new de.gulden.framework.amoda.model.data.IllegalTypeError("cannot convert value of type "+object.getClass().getName()+" ["+object.toString()+"] to File");
240 }
241 } else if (object==null) {
242 return null;
243 } else {
244 throw new de.gulden.framework.amoda.model.data.IllegalTypeError("cannot convert value of type "+object.getClass().getName()+" ["+object.toString()+"] to File");
245 }
246 }
247
248 public Color getColor() {
249 if (object instanceof java.awt.Color ) {
250 return ((Color)object);
251 } else if (object instanceof String ) {
252 Color c=de.gulden.util.Toolbox.parseColor((String )object);
253 if (c!=null) {
254 return c;
255 } else {
256 throw new de.gulden.framework.amoda.model.data.IllegalTypeError("cannot convert '"+((String )object)+" to Color");
257 }
258 } else if (object==null) {
259 return null;
260 } else {
261 throw new de.gulden.framework.amoda.model.data.IllegalTypeError("cannot convert value of type "+object.getClass().getName()+" ["+object.toString()+"] to Color");
262 }
263 }
264
265 public Class getType() {
266 return type;
267 }
268
269 public void setType(Class _type) {
270 type = _type;
271 }
272
273 public Object get() {
274 return object;
275 }
276
277 public Object set(Object _object) {
278 Object old = object;
279 if ((type==null)&&(_object!=null)) {
280 type=_object.getClass();
281 }
282 object = _object;
283 return old;
284 }
285
286 public String getName() {
287 return name;
288 }
289
290 public void setName(String _name) {
291 name = _name;
292 }
293
294 public Class getClassType() {
295 if (object instanceof Class ) {
296 return ((Class )object);
297 } else if (object instanceof String ) {
298 try {
299 Class c = Class.forName((String )object);
300 return c;
301 } catch (ClassNotFoundException cnfe) {
302 throw new de.gulden.framework.amoda.model.data.IllegalTypeError("cannot convert '"+((String )object)+" to Class");
303 }
304 } else if (object==null) {
305 return null;
306 } else {
307 throw new de.gulden.framework.amoda.model.data.IllegalTypeError("cannot convert value of type "+object.getClass().getName()+" ["+object.toString()+"] to Class");
308 }
309 }
310
311 public Object getClassInstance() {
312 Class cl = getClassType();
313 try {
314 return cl.newInstance();
315 } catch (InstantiationException ie) {
316 throw new de.gulden.framework.amoda.model.data.IllegalTypeError("cannot create instance of "+cl.getName()+": "+ie.getMessage());
317 } catch (IllegalAccessException iae) {
318 throw new de.gulden.framework.amoda.model.data.IllegalTypeError("cannot create instance of "+cl.getName()+": "+iae.getMessage());
319 }
320 }
321
322
323
327 public static boolean isBooleanLiteral(boolean booleanValue, String s) {
328 int b=booleanValue?0:1;
329 for (int i=0;i<BOOLEAN_LITERALS[b].length;i++) {
330 if (s.equalsIgnoreCase(BOOLEAN_LITERALS[b][i])) {
331 return true;
332 }
333 }
334 return false;
335 }
336
337 } |
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